Make methods synchronous

src/VisualStudio/Core/Test/CodeModel/CSharp/CodeDelegateTests.vb

@@ -246,7 +246,7 @@ delegate C $$D();
 #Region "Set Type tests"
 
         <ConditionalWpfFact(GetType(x86)), Trait(Traits.Feature, Traits.Features.CodeModel)>
-        Public Sub TestSetType1()
+        Public Async Function TestSetType1() As Task
             Dim code =
 <Code>
 public delegate int $$D();
@@ -257,8 +257,8 @@ public delegate int $$D();
 public delegate void D();
 </Code>
 
-            TestSetTypeProp(code, expected, "void")
-        End Sub
+            Await TestSetTypeProp(code, expected, "void")
+        End Function
 
         <ConditionalWpfFact(GetType(x86)), Trait(Traits.Feature, Traits.Features.CodeModel)>
         Public Async Function TestSetType2() As Task

src/VisualStudio/Core/Test/CodeModel/CSharp/CodeVariableTests.vb

@@ -309,7 +309,7 @@ class C
 #Region "AddAttribute tests"
 
         <ConditionalWpfFact(GetType(x86)), Trait(Traits.Feature, Traits.Features.CodeModel)>
-        Public Sub TestAddAttribute1()
+        Public Async Function TestAddAttribute1() As Task
             Dim code =
 <Code>
 using System;
@@ -331,8 +331,8 @@ class C
 }
 </Code>
 
-            await TestAddAttribute(code, expected, New AttributeData With {.Name = "Serializable"})
-        End Sub
+            Await TestAddAttribute(code, expected, New AttributeData With {.Name = "Serializable"})
+        End Function
 
         <ConditionalWpfFact(GetType(x86)), Trait(Traits.Feature, Traits.Features.CodeModel)>
         Public Async Function TestAddAttribute2() As Task